Description
Product Overview
The Nextion Basic NX4024T032 is a powerful Human-Machine Interface (HMI) display module that integrates a 3.2-inch TFT LCD color screen with a resistive touch panel into a compact, easy-to-use package . Designed to provide seamless interaction between users and electronic systems, this module serves as an ideal control and visualization interface for IoT applications, consumer electronics, industrial automation, and embedded projects .
What sets the Nextion apart from traditional LCDs is its intelligent architecture. The module features a built-in processor that independently manages all graphical interface functions—drawing buttons, updating text, displaying graphs, and processing touch inputs—using its own firmware. Your main microcontroller (Arduino, ESP32, ESP8266, Raspberry Pi, or STM32) communicates with the display via simple ASCII text commands over a UART (TTL serial) interface . This approach eliminates the need for complex graphics programming and parallel wiring, drastically reducing development time.
The drag-and-drop Nextion Editor software (free download from the manufacturer) allows you to design your graphical user interface visually: simply place buttons, sliders, gauges, and text boxes on the canvas, assign properties, and compile . The resulting firmware file is uploaded to the display via microSD card or serial. The “Basic” series balances performance and cost, making it an excellent starting point for both beginners and professionals .
Key Features
-
3.2-Inch TFT LCD Display: 400 × 240 pixel resolution (QVGA) with 65,536 colors (16-bit RGB 565), providing vivid, true-to-life visuals .
-
Integrated Resistive Touch Panel: Durable 4-wire resistive touch screen rated for over 1 million touches; responds to finger, gloved hand, or stylus input .
-
UART (TTL Serial) Communication: Simple 4-pin interface (VCC, GND, TX, RX) connects directly to Arduino, ESP32, ESP8266, Raspberry Pi, or STM32 .
-
Standalone HMI Processor: Built-in microcontroller handles all graphics processing and touch detection independently—your host MCU only needs to send simple commands .
-
WYSIWYG GUI Editor: Free, Windows-based Nextion Editor software with drag-and-drop components (buttons, text, sliders, progress bars, gauges) eliminates low-level graphics programming .
-
Adjustable Brightness: LED backlight brightness adjustable from 0% to 100% in 1% increments (up to 180 nits) via simple serial command .
-
Built-in Flash Memory: Stores fonts, images, and user interface data; supports microSD card (FAT32, up to 32GB) for firmware updates .
-
Wide Supply Voltage Range: Operates from 4.75V to 7.0V DC (5V typical), with a separate power test board included for verifying power supply capability .
-
Industrial Temperature Rating: Reliable operation from -20°C to +70°C, suitable for various indoor and protected outdoor applications .
-
Ultra-Low Power Consumption: Sleep mode consumes only 15mA during idle periods, ideal for power-sensitive applications .
Technical Specifications
| Parameter | Operating Value |
|---|---|
| Display Diagonal | 3.2 inches |
| Resolution | 400 × 240 pixels (QVGA) |
| Display Colors | 65,536 (16-bit RGB 565) |
| Touch Panel | Resistive (4-wire), >1 million touches |
| Active Area (A.A.) | 69.60mm × 41.76mm |
| Visual Area (V.A.) | 80.90mm × 47.60mm |
| Layout Size | 95mm × 47.6mm × 5.8mm |
| Backlight | LED, 180 nits (0–100% dimmable) |
| Backlight Lifetime | >30,000 hours |
| Operating Voltage | 4.75V – 7.0V DC (5V typical) |
| Operating Current | 85mA (100% brightness), 15mA (Sleep mode) |
| Power Supply Recommendation | 5V, 500mA DC |
| Communication Interface | TTL UART (3.3V/5V tolerant) |
| Baud Rate | 2400 – 921600 bps (9600 default) |
| Flash Memory | 4 MB |
| RAM | 3584 bytes |
| microSD Card | Supports up to 32GB (FAT32) – for firmware only |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -30°C to +85°C |
| Weight | 42.5g |
Reviews
There are no reviews yet.